<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <link href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900" rel="stylesheet">
    <link href="https://cdn.jsdelivr.net/npm/@mdi/font@5.x/css/materialdesignicons.min.css" rel="stylesheet">
    <link href="https://cdn.jsdelivr.net/npm/vuetify@2.x/dist/vuetify.min.css" rel="stylesheet">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no, minimal-ui">
    <title>点餐系统管理员页面</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.x/dist/vue.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/vuetify@2.x/dist/vuetify.js"></script>
    <script src="js/jquery-2.1.0.min.js"></script>
    <style>

    </style>
</head>
<body>
    <div id="app" >

        <!-- 左侧导航 -->
        <v-navigation-drawer v-model="drawer" app>
            <v-list dense v-show="!login.isLogin">
                <v-list-item link v-on:click="login.showLoginDialog=true">
                    <v-list-item-action>
                        <v-icon>mdi-login</v-icon>
                    </v-list-item-action>
                    <v-list-item-content>
                        <v-list-item-title>登陆</v-list-item-title>
                    </v-list-item-content>
                </v-list-item>
                <v-list-item link v-on:click="index">
                    <v-list-item-action>
                        <v-icon>mdi-login</v-icon>
                    </v-list-item-action>
                    <v-list-item-content>
                        <v-list-item-title>用户登陆</v-list-item-title>
                    </v-list-item-content>
                </v-list-item>
            </v-list>

            <!-- 左侧欢迎信息和导航 -->
            <v-list dense v-show="login.isLogin">
                <v-list-item link>
                    <v-list-item-action>
                        <v-icon>mdi-account</v-icon>
                    </v-list-item-action>
                    <v-list-item-content>
                        <v-list-item-title>{{login.inputUsername}} 管理员您好!</v-list-item-title>
                    </v-list-item-content>
                </v-list-item>
                <v-list-item link @click="status = 'dishesPage'">
                    <v-list-item-action>
                        <v-icon>mdi-cart-outline</v-icon>
                    </v-list-item-action>
                    <v-list-item-content>
                        <v-list-item-title>查看菜品</v-list-item-title>
                    </v-list-item-content>
                </v-list-item>
                <v-list-item link @click="showOrder()">
                    <v-list-item-action>
                        <v-icon>mdi-cart-outline</v-icon>
                    </v-list-item-action>
                    <v-list-item-content>
                        <v-list-item-title>查看订单</v-list-item-title>
                    </v-list-item-content>
                </v-list-item>
                <v-list-item link @click="logout">
                    <v-list-item-action>
                        <v-icon>mdi-logout</v-icon>
                    </v-list-item-action>
                    <v-list-item-content>
                        <v-list-item-title>退出登陆</v-list-item-title>
                    </v-list-item-content>
                </v-list-item>

            </v-list>
        </v-navigation-drawer>

        <v-app>
            <v-app-bar app color="indigo" dark>
                <v-app-bar-nav-icon @click.stop="drawer = !drawer"></v-app-bar-nav-icon>
                <v-toolbar-title>点餐系统</v-toolbar-title>
            </v-app-bar>
            <v-content>

                <!-- 菜品列表 -->
                <v-simple-table v-show="status == 'dishesPage' && login.isLogin">
                    <template v-slot:default>
                        <thead>
                            <tr>
                                <th class="text-left">菜名</th>
                                <th class="text-left">价格</th>
                                <th class="text-left">操作</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr v-for="dish in dishes">
                                <td>
                                    <v-icon>mdi-food</v-icon>
                                    {{dish.name}}
                                </td>
                                <td>
                                    <v-icon>mdi-cash</v-icon>
                                    {{dish.price}}
                                </td>
                                <td>
                                    <v-btn color="primary" @click="del(dish.id)">删除</v-btn>
                                </td>
                            </tr>
                        </tbody>
                    </template>
                </v-simple-table>
              <!--  新增菜品-->
                <v-row v-show="status == 'dishesPage' && login.isLogin">
                    <v-col :col="11">
                    </v-col>
                    <v-col :cols="2">
                        <v-btn color="primary" @click="showAddDish=true"block>新增菜品</v-btn>
                    </v-col>
                </v-row>

                <!-- 订单列表 -->
                <v-simple-table v-show="status == 'ordersPage' && login.isLogin">
                    <template v-slot:default>
                        <thead>
                            <tr>
                                <th class="text-left">序号</th>
                                <th class="text-left">用户</th>
                                <th class="text-left">状态</th>
                                <th class="text-left">时间</th>
                                <th class="text-left">详情</th>
                            </tr>
                        </thead>
                        <tbody>
                            <tr v-for="order in orders">
                                <td>{{order.id}}</td>
                                <td>{{order.uname}}</td>
                                <td>
                                    <v-switch v-model="order.status" @click="upStatus(order.id,order.status)"></v-switch>
                                </td>
                                <td>{{order.createtime}}</td>
                                <td>
                                    <v-btn color='primary' @click="detail(order.id)">查看详情</v-btn>
                                </td>
                            </tr>
                        </tbody>
                    </template>
                </v-simple-table>

                <v-row v-show="!login.isLogin">
                    <v-col>
                        <v-card class="pa-2 text-center">请先登陆!</v-card>
                    </v-col>
                </v-row>
           <!--     登陆页面-->
                <v-row justify="center">
                    <v-dialog v-model="login.showLoginDialog" persistent max-width="400px">
                        <v-card>
                            <v-card-title>
                                <span class="headline">登陆</span>
                            </v-card-title>
                            <v-card-text>
                                <v-container>
                                    <v-row>
                                        <v-col cols="12" sm="12">
                                            <v-text-field label="用户名*" v-model="login.inputUsername" required>
                                            </v-text-field>
                                        </v-col>
                                    </v-row>
                                    <v-row>
                                        <v-col cols="12" sm="12">
                                            <v-text-field label="密码*" v-model="login.inputPassword" required>
                                            </v-text-field>
                                        </v-col>
                                    </v-row>
                                    <v-row>
                                        <v-col cols="12" sm="6">
                                            <v-btn color="primary" @click="doLogin()" block>登陆</v-btn>
                                        </v-col>
                                        <v-col cols="12" sm="6">
                                            <v-btn color="primary" v-on:click="login.showLoginDialog=false" block>取消
                                            </v-btn>
                                        </v-col>
                                    </v-row>
                                </v-container>
                            </v-card-text>
                        </v-card>
                    </v-dialog>
                </v-row>
             <!--   菜单详情-->
                <v-row justify="center">
                    <v-dialog v-model="showCurOrder" persistent max-width="600px">
                        <v-simple-table>
                            <template v-slot:default>
                                <thead>
                                    <tr>
                                        <th class="text-left">菜品</th>
                                        <th class="text-left">价格</th>
                                    </tr>
                                </thead>
                                <tbody>
                                    <tr v-for="order in curOrder">
                                        <td>{{order.dish.name}}</td>
                                        <td>{{order.dish.price}}</td>
                                    </tr>
                                    <tr>
                                        <td>总金额：{{ sumMonkey}}</td>
                                        <td>
                                            <v-btn color="primary" @click="showCurOrder=false">关闭</v-btn>
                                        </td>
                                    </tr>
                                </tbody>
                            </template>
                        </v-simple-table>
                    </v-dialog>
                </v-row>
                <!-- 新增菜品 -->
                <v-row justify="center">
                    <v-dialog v-model="showAddDish" persistent max-width="600px">
                        <v-card>
                            <v-card-title>
                                <span class="headline">新增菜品</span>
                            </v-card-title>
                            <v-card-text>
                                <v-container>
                                    <v-row>
                                        <v-col cols="12" sm="12">
                                            <v-text-field label="菜品名*" v-model="newDish.name" required></v-text-field>
                                        </v-col>
                                    </v-row>
                                    <v-row>
                                        <v-col cols="12" sm="12">
                                            <v-text-field label="价格(元)*" v-model="newDish.price" required>
                                            </v-text-field>
                                        </v-col>
                                    </v-row>
                                    <v-row>
                                        <v-col cols="12" sm="6">
                                            <v-btn color="primary" block v-on:click="addDish()">新增</v-btn>
                                        </v-col>
                                        <v-col cols="12" sm="6">
                                            <v-btn color="primary" block v-on:click="showAddDish = false">取消</v-btn>
                                        </v-col>
                                    </v-row>
                                </v-container>
                            </v-card-text>
                        </v-card>
                    </v-dialog>
                </v-row>
            </v-content>
        </v-app>
    </div>

    <script>
        let app = new Vue({
            el: '#app',
            data: {
                drawer: null,
                status: 'dishesPage', // 取值为: ordersPage, dishesPage
                // 登陆相关参数定义
                login: {
                    isLogin: false,
                    showLoginDialog: false,
                    inputUsername: "",
                    inputPassword: "",
                },
                user: {
                    name: 'test',
                    isAdmin: 0,
                },
                dishes: [],
                orders: [],
                // 辅助实现订单显示详情
                showCurOrder: false,
                curOrder: {},
                // 实现显示新增菜品窗口
                showAddDish: false,
                newDish: {
                    name: "",
                    price: 0,
                },
            },
            methods: {
                //转向用户登录
                index(){
                    location.href='./index.html'
                },
                // 登录方法
                doLogin(){
                    if(this.login.inputUsername.trim()==""){
                        alert("请输入用户名");
                    }
                    else if(this.login.inputPassword.trim()==""){
                        alert("请输入密码");
                    }
                    else{
                        jQuery.getJSON("/user/login",
                            {"name":this.login.inputUsername,
                                "password":this.login.inputPassword,
                            "isadmin":1},
                            function (result) {
                                if (result!=null&&result.status==0){
                                    app.login.inputPassword=""
                                    app.login.isLogin=true
                                    //隐藏登陆窗体
                                    app.login.showLoginDialog=false
                                    alert("登录成功");
                                    //获取菜单列表
                                    jQuery.getJSON("/dish/list",
                                        {},
                                        function (result) {
                                            if (result!=null&&result.status==0){
                                                app.dishes=result.data;
                                            }
                                            else
                                                alert(result.message)

                                        })
                                }else
                                    alert(result.message)
                            })
                    }
                },
                //是否登录
                isLogin(){
                    jQuery.getJSON("/user/islogin",{},
                        function (result) {
                            if (result!=null&&result.status==0){
                                app.login.isLogin=true
                                app.login.inputUsername=result.data.name
                                //获取菜单列表
                                jQuery.getJSON("/dish/list",
                                    {},
                                    function (result) {
                                        if (result!=null&&result.status==0){
                                            app.dishes=result.data;
                                        }
                                        else
                                            alert(result.message)

                                    })
                            }
                        })
                },
                //退出登录
                logout(){
                    if (confirm("确认退出？")) {
                        jQuery.getJSON("/user/logout", {},
                            function (result) {
                                if (result != null && result.status == 0) {
                                    app.login.isLogin = false
                                    app.login.inputUsername = ""
                                    alert("退出成功")
                                    location.href=location.href
                                } else
                                    alert(result.message())

                            })
                    }
                },
                //删除菜品
                del(id){
                    if (confirm("确认删除该菜品吗？")){
                    jQuery.getJSON("/dish/del",
                        {"id":id},
                    function (result) {
                        if (result!=null){
                            alert(result.message)
                            location.href=location.href
                        }
                    })
                    }
                },
                //新增菜品
                addDish(){
                    if (app.newDish.name.trim()!=""&&app.newDish.price!=""){
                    jQuery.getJSON("/dish/add",
                        {"name":app.newDish.name.trim(),
                        "price":app.newDish.price.trim()},
                    function (result) {
                        if (result!=null&&result.status==0){
                            alert("新增菜品成功")
                            app.showAddDish=false
                            location.href=location.href
                        }else
                            alert(result.message)
                    })
                    }else
                        alert("请将新增菜品信息写完整");
                },
                //查看历史订单
                showOrder(){
                    jQuery.getJSON("/order/alllist",{},
                    function (result) {
                        if (result!=null&&result.status==0){
                            app.status = 'ordersPage'
                            app.orders=result.data;
                        }else
                            alert(result.message)
                    })
                },
                //退出登录
                logout(){
                    if (confirm("确认退出？")) {
                        jQuery.getJSON("/user/logout", {},
                            function (result) {
                                if (result != null && result.status == 0) {
                                    app.login.isLogin = false
                                    app.login.inputUsername = ""
                                    alert("退出成功")
                                    location.href=location.href
                                } else
                                    alert(result.message())

                            })
                    }
                },
                //订单详情
                detail(oid){
                    jQuery.getJSON("/detail/list",{"oid":oid},
                        function (result) {
                            if (result!=null&&result.status==0){
                                app.curOrder=result.data
                                app.showCurOrder=true
                            }else
                                alert(result.message);
                        })
                },
                //修改订单状态
                upStatus(id,status1){

                        jQuery.getJSON("/order/up",
                            {"oid":id,
                            "status1":status1?1:0},
                        function (result) {
                           alert(result.message)

                        })
                }
            },
            computed: {
                //订单总金额
                sumMonkey(){
                    let sum=0;
                    app.curOrder.forEach(order=>{
                        sum+=order.dish.price
                    })
                    return sum;
                }
            },
            vuetify: new Vuetify(),
        });
        app.isLogin()
    </script>
</body>

</html>